Blocking(%)={((MFI   of  hFcRn   stable   (Competitor+A 48 8-hIgG 1)-MFI   of   HEK 293(A 488-hIgG 1))/(MFI   of  hFcRn   stable(A 48 8-hIgG 1)-MFI   of   HEK 293(A 488-hIgG 1)))}×100